Astronomers discover 83 supermassive black holes 13 billion light-years away

Agencies
March 15, 2019

Washington, Mar 15: Astronomers have discovered 83 quasars powered by supermassive black holes 13 billion light-years away from the Earth, from a time when the universe was less than 10 per cent of its present age.

“It is remarkable that such massive dense objects were able to form so soon after the Big Bang,” said Michael Strauss, a professor at Princeton University in the US.

“Understanding how black holes can form in the early universe, and just how common they are, is a challenge for our cosmological models,” Strauss said in a statement.

This finding, published in The Astrophysical Journal, increases the number of black holes known at that epoch  considerably, and reveals, for the first time, how common they are early in the universe’s history.

In addition, it provides new insight into the effect of black holes on the physical state of gas in the early universe in its first billion years.

Supermassive black holes, found at the centers of galaxies, can be millions or even billions of times more massive than the Sun.

While they are prevalent today, it is unclear when they first formed, and how many existed in the distant early universe.

A supermassive black hole becomes visible when gas accretes onto it, causing it to shine as a “quasar.” Previous studies have been sensitive only to the very rare, most luminous quasars, and thus the most massive black holes.

The new discoveries probe the population of fainter quasars, powered by black holes with masses comparable to most black holes seen in the present-day universe.

The team used data taken with “Hyper Suprime-Cam” (HSC) instrument, mounted on the Subaru Telescope of the National Astronomical Observatory of Japan, which is located on the summit of Maunakea in Hawaii.

The researchers selected distant quasar candidates from the sensitive HSC survey data.

They then carried out an intensive observational campaign to obtain spectra of those candidates, using three telescopes: the Subaru Telescope; the Gran Telescopio Canarias on the island of La Palma in the Canaries, Spain; and the Gemini South Telescope in Chile.

The survey revealed 83 previously unknown very distant quasars.

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ABDUL AZIZ SHE…
 - 
Saturday, 16 Mar 2019

SUBHAANALLAH

 

 
ALLAH ALMIGHTY CREATED EVERTHING  INCLUDING WHOLE UNIVERSE AND WHAT IS IN IT,

HUMAN BEING CANNOT REACH TO UNDERSTAND IT,  HUMAN LIFE NOT SUFFEICENT TO REACH AND KNOW EVERYTHING.

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News Network
January 2,2020

Kolkata, Jan 2: In what could spark fresh tensions between West Bengal Chief Minister Mamata Banerjee and the BJP-led centre, the Union Ministry of Defence on Wednesday rejected her state's tableau proposal for the Republic Day parade on January 26.

"The tableau proposal of West Bengal government was examined by the expert committee in two rounds of meetings. The tableau proposal of the West Bengal government was not taken forward for further consideration by the committee after deliberations in the second meeting," the ministry said in its statement.

Twenty two proposals comprising 16 states and union territories and six ministries and departments have been shortlisted for the parade. The shortlist was compiled from as many as 56 tableau proposals - 32 from states and union territories and 24 from various ministries and departments - received by the central government.

"The expert committee examines the proposals on the basis of theme, concept, design and visual impact before making its recommendations. Due to time constraints arising out of the overall duration of the parade, only a limited number of tableaux can be shortlisted for participation in the parade," the statement read, adding that West Bengal was shortlisted for the 2019 Republic Day parade through a similar process.

"The rejection of the West Bengal tableau for the Republic Day parade is discriminatory. It has been done because West Bengal has been opposing the centre's CAA (Citizenship Amendment Act) and the NRC (National Register of Citizens) plans," Trinamool Congress MP Saugata Roy told news agency.

"West Bengal is known to be living state as far as culture, including arts, music and other things are concerned. So obviously, this is a discriminatory step taken by the central government against West Bengal," Mr Roy added.

The Trinamool Congress-led Bengal government is at loggerheads with the central government over several issues, and the expanding presence of the BJP in the eastern state ahead of the 2021 assembly elections has further intensified their rivalry.

Mamata Banerjee has repeatedly said that she will not allow Bengal to be a part of the proposed nationwide National Register of Citizens, an assertion that the BJP claims is proof of her minority appeasement strategy. Last month, a four-member delegation of Trinamool Congress politicians that visited BJP-ruled Uttar Pradesh to meet families of those killed in violent protests against the Citizenship Amendment Act were stopped by police personnel at the Lucknow airport.

The BJP leadership has now decided to launch a campaign blitzkrieg in West Bengal to counter what it claims is the Trinamool's "misinformation programmes" against the amended citizenship law and reach out to refugees. Protests across the country have currently put the party on the backfoot.

The Citizenship Amendment Act, for the first time, makes religion the test of citizenship in India. The government says it will help minorities from three Muslim-dominated countries get citizenship if they fled to India because of religious persecution before 2015. Critics say it is designed to discriminate against Muslims and violates the secular principals of the Constitution.

Brazilian President Jair Bolsonaro will be the chief guest at the Republic Day celebrations.

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News Network
June 15,2020

Sitamarhi, Jun 15: Eyewitness accounts from locals in Bihar's Sitamarhi district recount the brutality and intimidation by Nepal's security personnel who on June 12 had resorted to unprovoked firing on a group of people at the international border, which left one Indian dead and two others injured.

"18-20 shots were fired for over one hour and everyone is in shock even now," said Nitish Kumar, a resident of Jankinagar recalling the incident that took place early on Friday morning.

Nepal's Armed Police Force (APF) opened fire at the Lalbandi-Jankinagar border in which three men - Vikesh Yadav, Umesh Ram and Uday Thakur - suffered gunshot injuries. Vikash Yadav succumbed to his injuries on Friday itself.

Another person Lagan Kishore, who was at the border with his family to meet his daughter-in-law, a Nepali national and her family, said he was detained by the APF personnel who dragged him to the other side of the border.

Lagan Kishore said that the Nepali personnel abused and hit him with rifle butts and even abused his son and later resorted to firing.

Several residents of Jankinagar, who spoke to media, termed the incident as "unfortunate and shocking".

Nitish Kumar recalled: "A family was here to meet their in-laws (Nepali nationals). The daughter-in-law was talking to her family while her husband and her father-in-law sat a little distance away. Suddenly I saw Nepali personnel abusing her husband who complained about it to his father. All of a sudden the Nepali forces started thrashing them and then opened fire. They also took the father into custody."

"We were all shocked. I could hear about 18-20 gunshots fired over a period of one hour," Kumar said.

Another local, Ajit Kumar, said he was perplexed with the behaviour of the Nepali Police.

"There used to be no problems earlier. We don't understand what happened to the Nepal Police that day. The firing is unfortunate. If this continues, how will people in the border area live?" he questioned.

Ajit Kumar stated that such an incident has taken place for the first time. "People from here go to work in fields in Nepal and their people come to work in our fields. Such a thing has happened for the first time. About 80 per cent of our people are married to Nepalis," he said.

Many people who live in the adjoining districts of Bihar, which shares over 600 kilometres of border with Nepal, have relatives on either side of the border.

Meanwhile, Nepali police have claimed that Lagan Kishore, who was taken into custody following the firing by APF and handed over to Indian Security Forces at no man's land on June 13, was detained for trying to snatch a weapon from one of their personnel during an altercation.

However, both Kishore and his family have denied the claims and said he was "dragged" across the border and was beaten.

Kishore said that during the firing he had rushed towards the Indian side but Nepalese personnel hit him with rifle butt and took him to Nepal's Sangrampur. He was also asked to confess that he was taken into custody from the Nepali side.

"We ran to return to India when they started firing, but they dragged me from the Indian side, hit me with a rifle butt and took me to Nepal's Sangrampur. They told me to confess that I was brought there from Nepal. I told them you can kill me but I was brought there from India," said Kishore.

Kishore's son also said that Nepali personnel started abusing them and hit him and his father.

Speaking to ANI, Kishore's son said, "We went to meet my brother-in-law. Security personnel started abusing me but I could not understand their language. However, my brother's wife asked them to not abuse. After that, they came to the Indian side and hit me. I told my father about the incident and he confronted them."

"They started beating him and called fellow personnel who started firing and dragged my father from the Indian side, hit him with a rifle butt and took him to Nepal''s Sangrampur," he said.

Relations have become strained between India and Nepal after the latter released a map showing parts of Indian Territory-Lipulekh, Kalapani and Limpiyadhura as its own.

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coastaldigest.com web desk
June 27,2020

New Delhi, June 27: The Prime Minister Narendra Modi-led union government of India is not ready to stop all imports from aggressive China in spite of mount calls to boycott Chinese products in India.

The Centre is reportedly considering to stop only non-essential imports from the neighbouring country.

However, the Inward shipment in sectors such as automobiles, pharmaceuticals, certain electronics and others will continue until a domestic alternative is found.

“India will gradually move towards import substitution. It will not happen overnight. In the meantime, attention has to be paid on production and job creation. We cannot throttle our industry. There are certain absolutely essential imports. Needless to say, those will keep going,” official sources said.

Sources said that both the government and the industry are in the process of identifying products that can be domestically manufactured in the medium term. There are certain chemicals, automotive components, handicrafts, cosmetics, agriculture items and certain consumer electronics, which can be manufactured domestically in the short to medium term. The government is doing all it can to raise the capacity of domestic industries.

However, there are certain other imports in the automobile and the pharmaceutical sectors which cannot be done away within the short to medium term. Their domestic production at the moment may not be that cost-effective.

The six-crore strong traders’ body CAIT has been at the forefront of such a demand and has launched a campaign to celebrate Indian Diwali this year with a total absence of Chinese goods.

“Ease of doing business, capital availability at lower rates and globally competitive logistics and energy costs are some of the prerequisites that the government should look into to ensure the growth of the domestic auto component industry,” according to Automotive Component Manufacturers Association of India (ACMA) Director General Vinnie Mehta.

Maruti Suzuki Chairman R C Bhargava said, “People who are boycotting Chinese goods have to remember that in some cases it may lead to their being asked to pay more for the same product."

Meanwhile, domestic rating agency Acuite Ratings & Research has analysed the current import portfolio from China and found 40 sub-sectors have the potential to lower their import dependency on China. These sectors contribute to $33.6 billion worth of imports from China and about 25% of these imports can be substituted by local manufacturing without any significant additional investments.

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